*: add backup gtid and fix some bugs #698

api/v1alpha1/backup_types.go

@@ -64,6 +64,8 @@ type BackupStatus struct {
 	BackupDate string `json:"backupDate,omitempty"`
 	// Get the backup Type
 	BackupType string `json:"backupType,omitempty"`
+	// Get the Gtid
+	Gtid string `json:"gtid,omitempty"`
 	// Conditions represents the backup resource conditions list.
 	Conditions []BackupCondition `json:"conditions,omitempty"`
 }

api/v1alpha1/mysqlcluster_types.go

@@ -387,6 +387,9 @@ type MysqlClusterStatus struct {
 	ReadyNodes int `json:"readyNodes,omitempty"`
 	// State
 	State ClusterState `json:"state,omitempty"`
+	// LastBackup
+	LastBackup     string `json:"lastbackup,omitempty"`
+	LastBackupGtid string `json:"lastbackupGtid,omitempty"`
 	// Conditions contains the list of the cluster conditions fulfilled.
 	Conditions []ClusterCondition `json:"conditions,omitempty"`
 	// Nodes contains the list of the node status fulfilled.

api/v1alpha1/mysqlcluster_webhook.go

@@ -84,7 +84,7 @@ func (r *MysqlCluster) ValidateDelete() error {
 	return nil
 }
 
-// TODO: Add NFSServerAddress webhook & backup schedule.
+// Add NFSServerAddress webhook & backup schedule.
 func (r *MysqlCluster) validateNFSServerAddress(oldCluster *MysqlCluster) error {
 	isIP := net.ParseIP(r.Spec.NFSServerAddress) != nil
 	if len(r.Spec.NFSServerAddress) != 0 && !isIP {

backup/cronbackup.go

@@ -57,14 +57,22 @@ func (j *CronJob) scheduledBackupsRunningCount() int {
 	backupsList := &apiv1alpha1.BackupList{}
 	// select all backups with labels recurrent=true and and not completed of the cluster
 	selector := j.backupSelector()
-	client.MatchingFields{"status.completed": "false"}.ApplyToList(selector)
+	// Because k8s do not support fieldSelector with custom resources
+	// https://github.com/kubernetes/kubernetes/issues/51046
+	// So this cannot use fields selector.
+	// client.MatchingFields{"status.completed": "false"}.ApplyToList(selector)
 
-	if err := j.Client.List(context.TODO(), backupsList, selector); err != nil {
+	if err := j.Client.List(context.TODO(), backupsList); err != nil {
 		log.Error(err, "failed getting backups", "selector", selector)
 		return 0
 	}
-
-	return len(backupsList.Items)
+	var rest []apiv1alpha1.Backup
+	for _, b := range backupsList.Items {
+		if !b.Status.Completed {
+			rest = append(rest, b)
+		}
+	}
+	return len(rest)
 }
 
 func (j *CronJob) backupSelector() *client.ListOptions {
@@ -133,10 +141,12 @@ func (j *CronJob) createBackup() (*apiv1alpha1.Backup, error) {
 			//RemoteDeletePolicy: j.BackupRemoteDeletePolicy,
 			HostName: fmt.Sprintf("%s-mysql-0", j.ClusterName),
 		},
+		Status: apiv1alpha1.BackupStatus{Completed: false},
 	}
 	if len(j.NFSServerAddress) > 0 {
 		backup.Spec.NFSServerAddress = j.NFSServerAddress
 	}
+
 	return backup, j.Client.Create(context.TODO(), backup)
 }
 

backup/syncer/job.go

@@ -25,6 +25,7 @@ import (
 	metav1 "k8s.io/apimachinery/pkg/apis/meta/v1"
 	"k8s.io/apimachinery/pkg/runtime"
 	"sigs.k8s.io/controller-runtime/pkg/client"
+	"sigs.k8s.io/controller-runtime/pkg/log"
 
 	v1alpha1 "github.com/radondb/radondb-mysql-kubernetes/api/v1alpha1"
 	"github.com/radondb/radondb-mysql-kubernetes/backup"
@@ -101,6 +102,9 @@ func (s *jobSyncer) updateStatus(job *batchv1.Job) {
 		if backType := s.job.Annotations[utils.JobAnonationType]; backType != "" {
 			s.backup.Status.BackupType = backType
 		}
+		if gtid := s.job.Annotations[utils.JobAnonationGtid]; gtid != "" {
+			s.backup.Status.Gtid = gtid
+		}
 	}
 
 	// check for failed condition
@@ -152,13 +156,15 @@ func (s *jobSyncer) ensurePodSpec(in corev1.PodSpec) corev1.PodSpec {
 			"/bin/bash", "-c", "--",
 		}
 		backupToDir, DateTime := utils.BuildBackupName(s.backup.Spec.ClusterName)
+		// add the gtid script
 		strAnnonations := fmt.Sprintf(`curl -X PATCH -H "Authorization: Bearer $(cat /var/run/secrets/kubernetes.io/serviceaccount/token)" -H "Content-Type: application/json-patch+json" \
 		--cacert /var/run/secrets/kubernetes.io/serviceaccount/ca.crt https://$KUBERNETES_SERVICE_HOST:$KUBERNETES_PORT_443_TCP_PORT/apis/batch/v1/namespaces/%s/jobs/%s \
-		 -d '[{"op": "add", "path": "/metadata/annotations/backupName", "value": "%s"}, {"op": "add", "path": "/metadata/annotations/backupDate", "value": "%s"}, {"op": "add", "path": "/metadata/annotations/backupType", "value": "NFS"}]';`,
-			s.backup.Namespace, s.backup.GetNameForJob(), backupToDir, DateTime)
+		 -d "[{\"op\": \"add\", \"path\": \"/metadata/annotations/backupName\", \"value\": \"%s\"}, {\"op\": \"add\", \"path\": \"/metadata/annotations/backupDate\", \"value\": \"%s\"},{\"op\": \"add\", \"path\": \"/metadata/annotations/gtid\", \"value\": \"$( cat /backup/%s/xtrabackup_binlog_info|awk '{print $3}')\"}, {\"op\": \"add\", \"path\": \"/metadata/annotations/backupType\", \"value\": \"NFS\"}]";`,
+			s.backup.Namespace, s.backup.GetNameForJob(), backupToDir, DateTime, backupToDir)
+		log.Log.Info(strAnnonations)
 		// Add the check DiskUsage
 		// use expr because shell cannot compare float number
-		checkUsage := `[ $(expr $(df /backup|awk 'NR>1 {print $4}') \> $(du  /backup |awk 'END {if (NR > 1) {print $1 /(NR-1)} else print 0}')) -eq '1' ] || { echo disk available may be too small; exit 1;};`
+		checkUsage := `[ $(expr $(df /backup|awk 'NR>1 {print $4}') \> $(echo $(du -d1 /backup |awk 'END {if (NR > 1) {print $1 /(NR-1)} else print 0}')|cut -d. -f1)) -eq '1' ] || { echo disk available may be too small; exit 1;};`
 		in.Containers[0].Args = []string{
 			checkUsage + fmt.Sprintf("mkdir -p /backup/%s;"+
 				"curl --user $BACKUP_USER:$BACKUP_PASSWORD %s/download|xbstream -x -C /backup/%s; err1=${PIPESTATUS[0]};"+

charts/mysql-operator/crds/mysql.radondb.com_backups.yaml

@@ -125,6 +125,9 @@ spec:
                   - type
                   type: object
                 type: array
+              gtid:
+                description: Get the Gtid
+                type: string
             required:
             - completed
             type: object

charts/mysql-operator/crds/mysql.radondb.com_mysqlclusters.yaml

@@ -1376,6 +1376,11 @@ spec:
                   - type
                   type: object
                 type: array
+              lastbackup:
+                description: LastBackup
+                type: string
+              lastbackupGtid:
+                type: string
               nodes:
                 description: Nodes contains the list of the node status fulfilled.
                 items:

config/crd/bases/mysql.radondb.com_backups.yaml

@@ -125,6 +125,9 @@ spec:
                   - type
                   type: object
                 type: array
+              gtid:
+                description: Get the Gtid
+                type: string
             required:
             - completed
             type: object

config/crd/bases/mysql.radondb.com_mysqlclusters.yaml

@@ -1376,6 +1376,11 @@ spec:
                   - type
                   type: object
                 type: array
+              lastbackup:
+                description: LastBackup
+                type: string
+              lastbackupGtid:
+                type: string
               nodes:
                 description: Nodes contains the list of the node status fulfilled.
                 items:

controllers/backupcron_controller.go

@@ -120,7 +120,7 @@ func (r *BackupCronReconciler) updateClusterSchedule(ctx context.Context, cluste
 			log.V(1).Info("cluster already added to cron.", "key", cluster)
 
 			// change scheduler for already added crons
-			if !reflect.DeepEqual(entry.Schedule, schedule) {
+			if !reflect.DeepEqual(entry.Schedule, schedule) || j.NFSServerAddress != cluster.Spec.NFSServerAddress {
 				log.Info("update cluster scheduler", "key", cluster,
 					"scheduler", cluster.Spec.BackupSchedule)
 

mysqlcluster/syncer/status.go

@@ -19,12 +19,14 @@ package syncer
 import (
 	"context"
 	"fmt"
+	"sort"
 	"strconv"
 	"time"
 
 	"github.com/presslabs/controller-util/pkg/syncer"
 	corev1 "k8s.io/api/core/v1"
 	metav1 "k8s.io/apimachinery/pkg/apis/meta/v1"
+	"k8s.io/apimachinery/pkg/labels"
 	"k8s.io/apimachinery/pkg/runtime"
 	"k8s.io/apimachinery/pkg/types"
 	"sigs.k8s.io/controller-runtime/pkg/client"
@@ -153,11 +155,44 @@ func (s *StatusSyncer) Sync(ctx context.Context) (syncer.SyncResult, error) {
 	if len(s.Status.Conditions) > maxStatusesQuantity {
 		s.Status.Conditions = s.Status.Conditions[len(s.Status.Conditions)-maxStatusesQuantity:]
 	}
-
+	// update backup Status
+	s.updateLastBackup()
 	// Update all nodes' status.
 	return syncer.SyncResult{}, s.updateNodeStatus(ctx, s.cli, list.Items)
 }
 
+func (s *StatusSyncer) updateLastBackup() error {
+	// 1. fetch all finished backup cr
+	backupsList := &apiv1alpha1.BackupList{}
+	labelSet := labels.Set{"cluster": s.Name}
+	if err := s.cli.List(context.TODO(), backupsList, &client.ListOptions{
+		Namespace: s.Namespace, LabelSelector: labelSet.AsSelector(),
+	}); err != nil {
+		return err
+	}
+	var finisheds []apiv1alpha1.Backup
+	for _, b := range backupsList.Items {
+		if b.Status.Completed {
+			finisheds = append(finisheds, b)
+		}
+	}
+	// 2. sort descent
+	sort.Slice(finisheds, func(i, j int) bool {
+		return finisheds[i].ObjectMeta.CreationTimestamp.Before(&finisheds[j].ObjectMeta.CreationTimestamp)
+	})
+	// 3. get first backup which has backup Name
+	for _, b := range finisheds {
+		if len(b.Status.BackupName) != 0 {
+			s.Status.LastBackup = b.Status.BackupName
+			s.Status.LastBackupGtid = b.Status.Gtid
+			break
+		}
+
+	}
+
+	return nil
+}
+
 // updateClusterStatus update the cluster status and returns condition.
 func (s *StatusSyncer) updateClusterStatus() apiv1alpha1.ClusterCondition {
 	clusterCondition := apiv1alpha1.ClusterCondition{

sidecar/server.go

@@ -103,11 +103,11 @@ func (s *server) backupHandler(w http.ResponseWriter, r *http.Request) {
 		http.Error(w, "Not authenticated!", http.StatusForbidden)
 		return
 	}
-	backName, Datetime, err := RunTakeBackupCommand(s.cfg)
+	backName, Datetime, Gtid, err := RunTakeBackupCommand(s.cfg)
 	if err != nil {
 		http.Error(w, err.Error(), http.StatusInternalServerError)
 	} else {
-		msg, _ := json.Marshal(utils.JsonResult{Status: backupSuccessful, BackupName: backName, Date: Datetime})
+		msg, _ := json.Marshal(utils.JsonResult{Status: backupSuccessful, BackupName: backName, Gtid: Gtid, Date: Datetime})
 		w.Write(msg)
 	}
 }
@@ -211,7 +211,7 @@ func transportWithTimeout(connectTimeout time.Duration) http.RoundTripper {
 	}
 }
 
-func setAnnonations(cfg *Config, backname string, DateTime string, BackupType string) error {
+func setAnnonations(cfg *Config, backname string, DateTime string, Gtid, BackupType string) error {
 	config, err := rest.InClusterConfig()
 	if err != nil {
 		return err
@@ -231,6 +231,7 @@ func setAnnonations(cfg *Config, backname string, DateTime string, BackupType st
 	}
 	job.Annotations[utils.JobAnonationName] = backname
 	job.Annotations[utils.JobAnonationDate] = DateTime
+	job.Annotations[utils.JobAnonationGtid] = Gtid
 	job.Annotations[utils.JobAnonationType] = BackupType
 	_, err = clientset.BatchV1().Jobs(cfg.NameSpace).Update(context.TODO(), job, metav1.UpdateOptions{})
 	if err != nil {
@@ -266,7 +267,7 @@ func requestABackup(cfg *Config, host string, endpoint string) (*http.Response,
 	var result utils.JsonResult
 	json.NewDecoder(resp.Body).Decode(&result)
 
-	err = setAnnonations(cfg, result.BackupName, result.Date, "S3") // set annotation
+	err = setAnnonations(cfg, result.BackupName, result.Date, result.Gtid, "S3") // set annotation
 	if err != nil {
 		return nil, fmt.Errorf("fail to set annotation: %s", err)
 	}

sidecar/takebackup.go

@@ -17,36 +17,66 @@ limitations under the License.
 package sidecar
 
 import (
+	"bufio"
+	"fmt"
 	"os"
 	"os/exec"
 	"strings"
+	"sync"
 )
 
 // RunTakeBackupCommand starts a backup command
-func RunTakeBackupCommand(cfg *Config) (string, string, error) {
+func RunTakeBackupCommand(cfg *Config) (string, string, string, error) {
 	// cfg->XtrabackupArgs()
 	xtrabackup := exec.Command(xtrabackupCommand, cfg.XtrabackupArgs()...)
 
 	var err error
 	backupName, DateTime := cfg.XBackupName()
+	Gtid := ""
 	xcloud := exec.Command(xcloudCommand, cfg.XCloudArgs(backupName)...)
 	log.Info("xargs ", "xargs", strings.Join(cfg.XCloudArgs(backupName), " "))
 	if xcloud.Stdin, err = xtrabackup.StdoutPipe(); err != nil {
 		log.Error(err, "failed to pipline")
-		return "", "", err
+		return "", "", "", err
 	}
-	xtrabackup.Stderr = os.Stderr
+	//xtrabackup.Stderr = os.Stderr
 	xcloud.Stderr = os.Stderr
 
+	var wg sync.WaitGroup
+	Stderr, err := xtrabackup.StderrPipe()
+	if err != nil {
+		return "", "", "", fmt.Errorf("RunCommand: cmd.StderrPipe(): %v", err)
+	}
 	if err := xtrabackup.Start(); err != nil {
 		log.Error(err, "failed to start xtrabackup command")
-		return "", "", err
+		return "", "", "", err
 	}
 	if err := xcloud.Start(); err != nil {
 		log.Error(err, "fail start xcloud ")
-		return "", "", err
+		return "", "", "", err
 	}
+	scanner := bufio.NewScanner(Stderr)
+	//scanner.Split(ScanLinesR)
+	wg.Add(1)
+	go func() {
+		for scanner.Scan() {
+			text := scanner.Text()
+			fmt.Println(text)
+			if index := strings.Index(text, "GTID"); index != -1 {
+				// Mysql5.7 examples: MySQL binlog position: filename 'mysql-bin.000002', position '588', GTID of the last change '319bd6eb-2ea2-11ed-bf40-7e1ef582b427:1-2'
+				// MySQL8.0 no gtid:  MySQL binlog position: filename 'mysql-bin.000025', position '156'
+				length := len("GTID of the last change")
+				Gtid = strings.Trim(text[index+length:], " '") // trim space and \'
+				if len(Gtid) != 0 {
+					log.Info("Catch gtid: " + Gtid)
+				}
 
+			}
+		}
+		wg.Done()
+	}()
+
+	wg.Wait()
 	// pipe command fail one, whole things fail
 	errorChannel := make(chan error, 2)
 	go func() {
@@ -55,11 +85,18 @@ func RunTakeBackupCommand(cfg *Config) (string, string, error) {
 	go func() {
 		errorChannel <- xtrabackup.Wait()
 	}()
+	defer xtrabackup.Wait()
+	defer xcloud.Wait()
 
 	for i := 0; i < 2; i++ {
 		if err = <-errorChannel; err != nil {
-			return "", "", err
+			log.Info("catch error , need to stop")
+			_ = xtrabackup.Process.Kill()
+			_ = xcloud.Process.Kill()
+
+			return "", "", "", err
 		}
 	}
-	return backupName, DateTime, nil
+
+	return backupName, DateTime, Gtid, nil
 }

utils/constants.go

@@ -177,6 +177,8 @@ const (
 	JobAnonationName = "backupName"
 	// Job Annonations date
 	JobAnonationDate = "backupDate"
+	// Job Anonations Gtid
+	JobAnonationGtid = "gtid"
 	// Job Annonations type
 	JobAnonationType = "backupType"
 )
@@ -211,5 +213,6 @@ const (
 type JsonResult struct {
 	Status     string `json:"status"`
 	BackupName string `json:"backupName"`
+	Gtid       string `json:"gtid"`
 	Date       string `json:"date"`
 }